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throughout breeding season. It grew rapidly and Al centres, Rajshahi). A total 71 bulls were studied
attained sexual maturity in ponds, but did not breed for phenotypic parameters, viz., body weight, body
naturally in confined water. The eggs and sperms condition score, scrotal circumference (SC), libido
were obtained just by stripping through induced score and time required between two ejaculates
spawning and then fertilization was done by during 1993 to 2002. The information on the
artificial insemination. In every experiment of six phenotypic parameters was obtained by
replicate trials, the females were treated at first interviewing the semen collectors in respective Al
with HCG at the rate of 7.21 mg/kg body weight centers, reading the Al bull resister as well as
and at the second time with PG hormone at the rate examining and observing the bull during semen
of 7.5 mg/kg of body weight after an interval of collection. The bulls were classified according to
nine hours. The males were treated with PG (1.5 genetic composition viz., Group I: 100% Friesian,
mg/kg body weight) at the time of second injection Group II: 100% Sahiwal, Group III: 75% Friesianx
of the female. The ovulation was recorded after 7-8 25% Local, Group IV: 50% Sahiwa 1x50%
hours of the second dose of injection. The Friesian, Group V: 50% Friesian × 50% Local and
fecundity of various sizes of 20 P. nattereri was Group VI: 100% Local. In general, the average
estimated by gravimetric method. The average body weight, body condition score, scrotal
total number of eggs laid by individual female circumference (SC), libido score and time required
(fecundity) was estimated to be 58,340 (34,280- between two ejaculates were 572 ± 124 kg, 3.2 ±
96,000)/kg body weight. The fertilization rate was 0.5 (Score:1-5), 36.3 ± 1.9cm, 3.3 ± 0.6 (Score: 1-
observed 58-67%. Hatching of the fertilized eggs 5) and 7.1 ± 2.3 minutes, respectively. Individual
occurred within 28±3 hours after fertilization at bull had significant effect on phenotypic
water temperature of 24-27°C. The percentage of characteristics in six genetic groups. The overall
hatching rate was observed 50-59%. A newly better performance of phenotypic parameter was
hatched larva was devoid of mouth, pectoral fins observed in bull Id #: 0065 for Friesian breed, 163
and pigment, and measured 8.5 mm in length. The for 100% Sahiwal breed, 7811 for 75% Friesian ×
yolk sac was completely absorbed after seven days 25% Local, 5156 for 50% Sahiwal × 50% Friesian,
of hatching. Seventy two hours old larvae started 8224 for 50% Friesian × 50% Local and 40248 for
feeding. Twenty one days old larvae gained the 100% Local breed. Therefore, phenotypic
shape of an original charachid fish. characteristics has clearly influenced on bull
performances of Artificial Insemination (Al)
467 SARDER, M.J.U.; SULTANA, R.; programme in Bangladesh.
NAHAR, L. & ISLAM, M.A. (Dept. of Animal
Husbandry and Veterinary Science, 468 SARKER, G.C.; KABIR, M.M.; FEEROZ,
Rajshahi University, Rajshahi). Phenotypic M.M. & HASAN, M.K. (Dept. of Zoology,
Characteristics of Individual Bull Used for Jahangirnagar University, Savar, Dhaka). Food and
Artificial Insemination (Al) Programme in feeding behaviour of rhesus macaque (Macaca
Bangladesh. J. Bio-Sci., 2007, 15, 99-109. mulatta) at Barmi, Gazipur, Bangladesh. Bang. J.
Life. Sci., 2008, 20, (2), 1-8.
The purpose of the present study was to estimate
the effect of phenotypic characteristics on the A study on food and feeding behaviour of Rhesus
performances of bulls at three Al centres/stations macaques (Macaca mulatta) was conducted at
(CCBSDF, Savar, RDCIF, Rajabarihat and District Barmi, Gazipnr of Bangladesh from April 2003 to
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